Aussie Soap Supplies®
www.aussiesoapsupplies.com.au
Suggested Essential Oil & Fragrance Dilutions
It is very important to make accurate measurements of Essential Oils and Fragrances used in Bath and Body
products. Some Bramble Berry fragrances can be used up to 5% (which is rarely required except in candles
and tarts), but essential oils all have different usage levels, so we recommend checking a reference guide for
specifics. This document is a guide only.
All essential oils and fragrances must be diluted before application to the skin. Many essential oils have
contraindications (for those with high blood pressure, epilepsy, pregnancy for example). PLEASE CONSULT A
REFERENCE BOOK TO CHECK BEFORE USE. We recommend the same percentage of Fragrance as
Essential Oils as a guide, but this will vary. Bramble Berry fragrances are quite concentrated, and if using other
manufacturers fragrances you will need to check with the vendor regarding their suitability and safety.
First rule: ALWAYS skin test and check for contra-indications of essential oils
For Cold Processed Soap: Use 2.5% for most Essential Oils and Fragrances. Very strong oils such as
Lemon Myrtle, Lemon Eucalyptus & Peppermint etc, should be used at lower concentration with the total blend
of 2.5% of the OIL WEIGHT.
Product Usage Recommendations
Cold Processed Soap (oil weight)
2.5%
Melt & Pour Soap
1.0 to 2.5%
Facial Oil Blends
0.5% - 1.5%
Lotions & Creams
0.5% - 1.5%
Shampoo & Hair Products
0.5% - 1.5%
Massage Oils
1.0% - 2.5%
Salves and Ointments 0.5% - 1.0%
In the Bath (careful not to sit on the oils!!)
10 drops maximum
Note: Essential Oils should NOT exceed 2.5% for your Soap, and 1.5% for skincare products.
Use a little Polysorbate, CCG or Turkey Red Oil (Sulfonated Castor Oil) to help disperse oils in the Bath and
water based products such as shampoo as necessary.
Table for Quick FO/EO Calculation
For accuracy, all Essential Oils and Fragrance should be WEIGHED, but you can use this approximation for
soap batches.
Weight
10%
5%
2.5%
1%
2000g
200g
100g/ml
50g/ml
20g/ml
1000g
100g
50g/ml
25g/ml
10g/ml
700g
70g/ml
35g/ml
17g/ml
7g/ml
500g
50g/ml
25g/ml
12g/ml
5g/ml
250g
25g/ml
12g/ml
6g/ml
2.5g/ml
100g
10g/ml
5g/ml
2.5g/ml
100ml bottle (Liquid)
1 ml
2 ml
2.5ml
20 drops
40 drops
50 drops
For small measurements droppers are safest and easiest
1 dropper = 1 ml = 20 drops
1 teaspoon = 5ml = 100 drops
1 tablespoon = 20ml
www.aussiesoapsupplies.com.au
1g/ml
is approx 1%
is approx 2%
is approx 2.5%